Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0020538 (hypertension)
 170,190 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In order for women to benefit from adequate community-based care during pregnancy, delivery, and the postpartum, health authorities must provide adequate local services with a sufficient number of trained agents to supervise all deliveries, and the communities themselves must strive to prevent maternal deaths. The community should monitor the health of women, assure access to family planning and prenatal care for all women, and make its members aware of warning signs during pregnancy and delivery. Communities need the assistance of a maternity center or hospital for high-risk pregnancies and difficult deliveries if morbidity and mortality are to be avoided. Each delivery should be attended by a trained person who knows when the delivery is excessively protracted and hospitalization is necessary, what to do in case of hemorrhage or poor presentation of the infant, what rules of hygiene to follow, and how to handle other situations that arise during delivery. Women who are healthy and well-nourished before pregnancy have fewer problems during pregnancy and delivery, and family planning allows high-risk pregnancies to be avoided. Regular prenatal care allows high-risk pregnancies to be identified so that the women can be sent to a hospital for delivery. The expectant mother can be given iron supplements, the 2 injections that will protect mother and infant against tetanus, and antimalarial drugs if necessary. Hypertensive women can be identified, and women can be given advice on child care and family planning. Warning signs before pregnancy include pregnancy within the past 2 years, being under 18 or over 35 years old, family size of 4 or more children, birth of a previous infant weighing under 2500 gm at birth, history of difficult delivery or cesarean, previous premature delivery or stillbirth, maternal weight under 38 kg or height under 145 cm, or chronic illness. Warning signs during pregnancy include failure to gain weight, pallor in the interior of the eyelids, and swelling of the legs, arms, or face. 6 signs requiring immediate attention are vaginal bleeding during pregnancy, intense headaches which may signal high blood pressure, significant vomiting, fever, convulsions, and labor of more than 24 hours. The community should try to ensure that each pregnant woman has a delivery kit in her home ready for use so that the delivery can be safely attended at home if necessary. Women and families should know where to seek further assistance if complications or warning signs occur. Communities can organize 2-way communications by telephone or radio with the referral hospital and can ensure that transportation is always available. Communities can also organize their own forms of insurance so that women can pay for emergency medical care.
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PMID:[Maternal care: what must it provide in the community for maternity without risks?]. 1228 31

Adhesive molecules released from cellular surface, detected in body blood and liquids were determined as soluble or circulatory. In immunologically inflammatory process resulting from endothelium damage E-selectin is undoubtedly involved. The aim of this investigation was the concentration assessment of soluble E-selectin in blood serum in patients suffering from unstable angina pectoris. The expanding atheramotous process may bring about vascular endothelium dysfunction. In blood serum with citrate of 94 angina pectoris patients one found statistically higher E-selectin concentration than in control group. On the other hand, no statistically relevant differences were found pertaining to coexistent risk factors such as: high level of cholesterol in blood serum, hypertension, diabetes mellitus or smoking. Increased concentration was not age related. E-selectin was determined in citrate blood serum by ELISA immunoenzymatic method using Bender Medsystems kit.
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PMID:[E selectin of blood in patients with unstable angina pectoris]. 1236 1

While pathogenesis of hypertension is not clearly deciphered yet, increase in body weight, most of the time, is associated with hypertension. There are reports indicating that leptin, product of the Ob gene mainly synthesized in adipocytes, may have role(s) in hypertension, but contribution of the gender is rather contradictive. In the present study, plasma leptin levels in patients of both genders with hypertension and normotensive controls were measured and the relationship between plasma leptin levels and BMI were evaluated in both sexes. Total of 62 patients (31 M/31 F) diagnosed with essential hypertension who were not under any antihypertensive medication were admitted into the study. The control group was composed of 56 (25 M/31 F) age-, BMI- and sex-matched healthy normotensive volunteers. Plasma leptin levels were determined by a commercial ELISA kit. Plasma leptin and leptin/BMI levels (Mean +/- SEM) of women (n:62) were significantly higher than men (n:56) (20.10 +/- 1.47 ng/ml versus 4.72 +/- 0.50 ng/ml; p < 0.0001). Plasma leptin and leptin/BMI levels of patients of both genders with hypertension were significantly higher than in normotensive subjects (p < 0.05). Leptin and leptin/BMI levels in obese hypertensives were higher than obese normotensives (p < 0.05). Obese hypertensive women had higher leptin and leptin/BMI levels than obese normotensive women (p < 0.05). In conclusion, these results support the hypothesis that a possible link exists between leptin and hypertension. Further studies are needed to clarify how increased levels of leptin affects the pathophysiology of hypertension.
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PMID:Comparative analysis of plasma leptin levels in both genders of patients with essential hypertension and healthy subjects. 1509 23

Xanthine oxidase (XO), an enzyme involved in purine metabolism, is a source of either oxidants (superoxide radical) or antioxidants (uric acid). Interference with XO activity can lead to oxidative stress, thus contributing to the pathogenesis of cardiovascular diseases. The adenosine receptors antagonist, 1,3-dipropyl-8-sulfophenylxanthine (DPSPX), induces hypertension and cardiovascular injury in rats. Since DPSPX is a xanthine, we aimed at evaluating DPSPX's influence on XO activity to ascertain its contribution to DPSPX-induced hypertension. The activity of isolated XO in the presence of DPSPX was evaluated spectrophotometrically. Serum and urinary uric acid levels of DPSPX-treated rats were measured using a commercial kit. DPSPX inhibited XO activity in a concentration-dependent manner and reduced rat serum and urinary uric acid levels. It can be concluded that: DPSPX is an inhibitor of XO; decreased generation of uric acid may lead to oxidative stress, thus contributing to endothelial dysfunction and vascular morphological changes in DPSPX-treated rats.
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PMID:Xanthine oxidase inhibition by 1,3-dipropyl-8-sulfophenylxanthine (DPSPX), an antagonist of adenosine receptors. 1520 88

As it was reported earlier that isradipine, a Ca superset 2+ antagonist of dihydropyridine derivative class, caused regression of nifedipine-induced hyperplasia of human gingiva, experiments were performed to examine whether or not isradipine would solely inhibit the proliferation of cultured gingival fibroblasts. Normal human gingival fibroblast Gin-1 cells were used to test the impact of this medication. Fibroblast proliferation in the presence of isradipine (10 microM) was examined by using the reagent water-soluble tetrazolium-1 (WST-1). The level of basic fibroblast growth factor (bFGF) in the cell-free supernatant of each well was determined by using an enzyme-linked immunosorvent assay (ELISA) kit. The production of type I collagen was assayed by ELISA. Isradipine significantly enhanced the cell proliferation from the second day of the culture period. Also, isradipine raised the level of bFGF in the culture medium. The same concentration, also significantly enhanced the production of type I collagen. In conclusion, we were able to prove that isradipine causes the proliferation of cultured gingival fibroblasts as well as other dihydropyridine-derivative Ca superset 2+ antagonists do. In order to prevent the gingival overgrowth, it is advisable to be very careful in the use of isradipine as a therapy for hypertension and other indications.
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PMID:Proliferation of cultured human gingival fibroblasts caused by isradipine, a dihydropyridine-derivative calcium antagonist. 1525 73

Obesity is among the main contributing factors in the etiology of essential hypertension (EHT). Leptin, the product of the ob gene, is expressed mainly in adipose tissue. We examined the relationship between two trace elements, zinc (Zn) and copper (Cu), and leptin in patients with EHT (n=35) and normotensive (NT) controls (n=50) because leptin as well as Zn and Cu were reported to be associated with the pathophysiology of EHT. Plasma leptin levels were determined with a commercial enzyme-linked immunosorbent assay (ELISA) kit. Atomic absorption spectrophotometry was utilized to determine plasma Zn and Cu levels. There was a negative correlation between leptin and Zn, and the Zn/Cu ratio (r= -0.359, p<0.05; r= -0.361, p<0.05, respectively) in pooled subjects. When subjects were divided based on the presence or absence of hypertension, there was a negative correlation between leptin and Zn (r= -0.375, p<0.05) as well as leptin and Zn/Cu ratio (r= -0.398, p<0.05) in NT subjects. Similar trends were observed when leptin/BMI (body mass index) levels were utilized. There was no significant correlations between levels of Cu and leptin or leptin/BMI. In conclusion, in addition to high leptin levels, Zn and the Zn/Cu ratio were lower in patients with EHT compared to NT controls.
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PMID:Relationship among levels of leptin and zinc, copper, and zinc/copper ratio in plasma of patients with essential hypertension and healthy normotensive subjects. 1532 61

The serum levels of Zn, Cu, cholesterol (Ch) and triglyceride (TG) were determined in 44 patients with hypertension complicated with hyperlipemia, 42 patients with hypertension (HP) and 30 healthy controls by atomic absorption spectrophotometry and automatic biochemical analytical instrument of reagent kit. It was found that the contents of Zn, Ch, TG and Zn/Cu ratio in hypertension complicated with hyperlipemia were significantly higher than in HP and control, while Cu in hypertension complicated with hyperlipemia was significantly lower than in HP and control. The contents of Zn, Ch, TG and Zn/Cu ratio in hypertension were significantly increased. It is suggested that hypertension complicated with hyperlipemia is closely related with Zn and Cu.
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PMID:[Determination of trace copper and zinc in hypertension complicated with hyperlipemia by atomic absorption spectrophotometry]. 1576 98

The aim of the paper was to determine concentrations of plasmin-alpha2 antiplasmin complexes (PAP) and D-dimers in blood of patients suffering from acute coronary syndromes without ST segment elevation. 78 patients, including 37 females and 41 males, aged 41-79 years (mean age 63.2) were included in the study. Concentrations of PAP were determined by immmunoenzymatic method using Enzygnost PAP micro kit and concentrations of D-dimers using Dade Berling Enzygnost D-Dimer micro kit. Statistically significant, higher concentrations of PAP and D-dimers, indicating increased fibrinolytic activity of blood, were observed in patients with acute coronary syndrome than in the control group. Significantly higher concentrations of D-dimers were found in the group of patients above the age of 50, when compared with younger patients. Lower D-dimers levels were observed in smokers. Gender, coexisting hypercholesterolaemia, arterial hypertension and diabetes had no impact on concentrations of PAP and D-dimers in blood of patients suffering from acute coronary syndrome without ST segment elevation.
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PMID:[Fibrinolysis parameters: plasmin-alpha2 antiplasmin complexes (PAP) and D-dimers in acute coronary syndromes without ST segment elevation]. 1577 Nov 20

Discrepancy of plasma ACTH levels measured by different immunoradiometric assays (IRMA) in a case with malignant gastric carcinoid causing ectopic ACTH syndrome was examined by gel chromatography and immunohistochemical analysis. A 49-year-old male was found to have a large gastric tumor, with muscle wasting, hypertension, diabetes and hypokalemia caused by hypercortisolemia. His plasma ACTH levels, although initially elevated, were found to be almost in normal ranges. The discrepancy of plasma ACTH levels was proven to be due to different IRMA kits used; the initial assay was performed by a kit that could recognize high-molecular weight (HMW) form as well as ACTH(1-39), but the later assay by another kit that could recognize only ACTH(1-39). Pathological examination of the gastric tumor was consistent with the diagnosis of malignant carcinoid. Immunohistochemical study revealed that immunoreactivity of proopiomelanocortin (POMC) was positive within the tumor cells, whereas those of ACTH and prohormone convertase 1/3 were negative. Molecular sieving analysis of patient's plasma by gel chromatography coupled with ACTH radioimmunoassay which could recognize HMW form and ACTH(1-39) and two different IRMAs revealed that the predominant form of ACTH was HMW form with a minor peak of ACTH(1-39). This is a rare case of ectopic ACTH syndrome caused by malignant gastric carcinoid with preferential production of HMW form of ACTH, possibly due to unprocessed POMC.
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PMID:Malignant gastric carcinoid causing ectopic ACTH syndrome: discrepancy of plasma ACTH levels measured by different immunoradiometric assays. 1641 Jun 67

Adrenomedullin (AM) is a potent endothelial-derived vasodilator secreted under the influence of various stimuli such as hypoxia, shear stress and cytokines. As all of these stimuli might be active under the conditions of obstructive sleep apnoea (OSA), we hypothesized that vascular AM production is increased in these patients. The study included 41 consecutive OSA patients and 28 control subjects without sleep-disordered breathing who were recruited from a pool of patients hospitalized for other reasons. Both groups were matched for anthropometric and comorbid factors. In all patients, i.e. OSA and controls, peripheral venous blood samples were taken at 07:00 hours after diagnostic polysomnography. In subsets of OSA patients, this was repeated after two nights of continuous positive airway pressure (CPAP) therapy (n = 28) and after several months of constant CPAP use (n = 11). The controls and the untreated OSA patients did not have serial blood sampling. In all blood samples, plasma AM levels were measured by an enzyme immunoassay kit. At baseline, the OSA patients had markedly elevated AM concentrations when compared to the controls. There were no differences between normo- and hypertensive OSA patients. After two nights of CPAP therapy, AM levels significantly decreased. Patients on long-term CPAP treatment showed complete normalization of plasma AM concentrations. In conclusion, this pilot study suggests that circulating AM is increased in untreated OSA irrespective of coexistent arterial hypertension and declines after CPAP therapy. AM upregulation might be considered as an adaptive mechanism to counteract the emergence of OSA-related cardiovascular disease.
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PMID:Circulating adrenomedullin in obstructive sleep apnoea. 1649 7


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