Chronomics complement, among many other fields, genomics and proteomics.
...
Citation
Chronomics complement, among many other fields, genomics and proteomics. Neuro Endocrinol Lett. 2001 Jan; 22(1): 53-73
...
Chronomics complement, among many other fields, genomics and proteomics. Neuro Endocrinol Lett. 2001 Jan; 22(1): 53-73
: Bombesin and related peptides are widely distributed in gastrointestinal tract and central nervous system. It has been reported that they play an important role in the control of appetite, metabolism, sensory transmission and thermoregulation as well as in the regulation of pituitary hormone release. Central injection of these peptides leads to inhibition of feeding. There are controversial opinions about the effects of bombesin on pituitary hormone secretion both in vivo and in vitro experiments....
Baranowska B. Bombesin modulates the control of energy homeostasis and pituitary hormone release. Neuro Endocrinol Lett. 2009 Mar; 30(1): 3-5
...
Chronomics complement, among many other fields, genomics and proteomics. Neuro Endocrinol Lett. 2001 Jan; 22(1): 53-73
...
Fedor-Freybergh P. Chronomics complement, among many other fields, genomics and proteomics. Neuro Endocrinol Lett. 2001 Jan; 22(1): 53-73
OBJECTIVES: To examine whether the atrial natriuretic peptide receptor (NPR-A) is present in the secretory regions of the membrane labyrinth of the adult mouse inner ear.
SETTING: Recent studies have implied that the homeostasis of endolymph fluid in the inner ear may be regulated by receptor-mediated mechanisms. Several studies have identified the presence of atrial natriuretic peptide receptors in the inner ear of guinea pig and rat. As a member of the natriuretic peptide receptor family, which also includes B-type natriuretic peptide receptor (NPR-B) and C-type natriuretic peptide receptor (NPR-C), NPR-A may be involved in the regulation of fluid homeostasis in the inner ear.
METHODS: In this study, samples of stria vascularis, nonstrial tissue of the cochlear lateral wall and vestibular organ tissue from the ears of 6 adult mice were obtained by immediate excision of bony labyrinth under operating microscope after decapitation. Total RNA was isolated and mRNA was amplified by the reverse transcription-polymerase chain reaction (RT-PCR) using consensus primers flanking a region of 127 bp at the target sequence. Mouse renal cortex known to contain NPR-A was used as a positive control.
RESULTS: We demonstrated that NPR-A was expressed in the mouse stria vascularis as well as in the nonstrial tissue of the cochlear lateral wall and vestibular organ.
CONCLUSION: These results suggest that natriuretic peptides may play an important role in maintaining the fluid homeostasis of inner ear endolymph via interaction with NPR-A....
Long L, Tang Y, Xia Q, Xia Z, Liu J. Detection of atrial natriuretic peptide receptor in the labyrinth of the mouse inner ear. Neuro Endocrinol Lett. 2008 Aug; 29(4): 577-580
OBJECTIVE: It is suggested that gestational diabetes mellitus (GDM) is the earliest phase of DM. Nowadays DM is treated as a part of insulin resistance syndrome--patients with DM tend to be obese, dyslipidemic and hypertensive. It is postulated that similar abnormalities are found in GDM patients.
METHODS: The study was conducted among 81 women with GDM and 41 healthy controls. After diagnosis or negative screening for GDM the women underwent 24-hour blood pressure monitoring and measurements of plasma lipids, insulin concentrations and insulin resistance (expressed by HOMA score). The incidence of gestational hypertension and blood pressure until delivery was also analyzed.
RESULTS: 17 (21%) of GDM women and only 1 glucose tolerant control developed pregnancy induced hypertension. GDM women had significantly higher arterial pressure during the daytime and nighttime (accordingly 112.1/69.4 mmHg vs. 105.4/64.8 mmHg and 101.5/62.4 mmHg vs. 93.0/58.8 mmHg), although the average BP was within normal range. Heart rate was also faster in GDM group. Compared with healthy pregnant women, GDM patients had higher serum TG concentrations (247,9 vs 205 mg%; p<0,01), fasting insulin (66 vs 42,5 pmol/l; p<0,001) and insulin resistance (HOMA 2,15 vs 1,13; p<0,001). No correlation was found between blood pressure and insulin concentrations and insulin resistance among healthy and GDM women.
CONCLUSIONS: The results suggest that symptoms of insulin resistance are present in GDM women. They are characterized by higher arterial blood pressure, heart rate, serum triglycerides, insulin and increased insulin resistance....
Szymanska M, Bomba-Opon D, Wielgos M. Blood pressure and lipid changes in gestational diabetes mellitus. Neuro Endocrinol Lett. 2008 Jun; 29(3): 328-333
INTRODUCTION: Pathogenesis of colonic lesions in patients with acromegaly remains still unclear. There are suggestions that apart from somatotropin axis hormones (GH and IGF-1), other agents also take part in this process. Molecular and animal studies indicate a vital role of hyperinsulinemia in development of colorectal neoplasms.
AIM OF THE STUDY: To evaluate a relation between insulin level, insulin resistance and its anthropometric markers and colorectal lesions in patients with acromegaly.
MATERIAL AND METHODS: The study consisted of 40 patients with active, newly diagnosed acromegaly; 24 women and 16 men aged from 24 to 77 years (mean age 50.1, SD+/-12.1). The analysis included the results of somatotropin axis function (GH and IGF-1 level), carbohydrate metabolism assessment (fasting serum glucose and insulin levels, oral glucose tolerance test, HOMA-IR for insulin resistance), the results of anthropometric measurement (BMI, WHR) and colonoscopy.
RESULTS: Colon pathologies (60 polyps and 2 flat lesions) were discovered in 19 (47.5%) patients with acromegaly, 8 of them had multiple polyps. Hyperplastic polyps were revealed in 11 (27.5%), while adenomas in 8 (20%) acromegalics. Patients with colorectal lesions were found to have higher WHR then subjects with normal colon (p=0.033). Positive correlation between the number of hyperplastic polyps in the patients with multiple changes in the colon and IGF-1 (p=0.025), insulin level (p=0.005) and HOMA-IR (p=0.001) was found. Multiple adenomas correlated positively with insulin level (p=0.007), HOMA-IR (p=0.006) and BMI (p=0.015).
CONCLUSIONS: The study results show a relation between hyperinsulinemia, insulin resistance and colon pathologies in acromegaly. Fasting insulin level and HOMA-IR correlate positively with the number of hyperplastic polyps and adenomas in acromegalic patients with multiply colorectal lesions....
Foltyn W, Kos-Kudla B, Strzelczyk J, Matyja V, Karpe J, Rudnik A, Marek B, Kajdaniuk D, Sieron A, Latos W. Is there any relation between hyperinsulinemia, insulin resistance and colorectal lesions in patients with acromegaly? Neuro Endocrinol Lett. 2008 Feb; 29(1): 107-112
OBJECTIVE: To analyze the clinical and metabolic characteristics of large-scale Chinese women with polycystic ovary syndrome (PCOS).
DESIGN: Retrospective study.
SETTING: Hospital-based IVF center.
PATIENT(S): Patients with PCOS.
METHODS: In the present study, one thousand and forty PCOS patients were selected from women who visited the Reproductive Medicine Center at Shandong Provincial Hospital Shandong University between January 2002 and December 2006. All the patients had been performed a 75 g OGTT. Clinical characteristics, serum hormonal levels, glucose levels, insulin levels and lipid profiles were reviewed.
INTERVENTIONS: An oral glucose tolerance test and insulin release test were performed for each woman. After overnight fasting, blood samples were collected to determine fasting blood glucose, blood glucose and insulin (30 min, 60 min, 120 min, 180 min) after digesting 75 g glucose, luteotrophic hormone (LH), follicle-stimulating hormone (FSH), testosterone (T), prolactin (PRL), estradiol (E2), and blood lipid levels.
MAIN OUTCOME MEASURES: Height, weight, waistline, hip circumference, F-G grade for hirsutism, gonadal hormone results, blood lipid level, blood glucose tolerance, each-moment insulin level, and family history were determined.
RESULTS: (i) The presence of oligomenorrhea was 62.6% while amenorrhea was 19.71%. Menstrual disorder of all the adult patients could be traced back to their adolescent menarche. There were 450 obesity cases of which 259 patients were central obesity. The incidence of acanthosis nigricans was 15.19%, 65.19% with obesity. (ii) Cholesterol (4.8 +/- 0.98 vs 4.61 +/- 0.86) and LDL (3.80 +/- 6.92 vs 2.88 +/- 1.01) were both significantly higher in the obesity patients than the non obesity patients. (iii) 173 patients were diagnosed as diabetes mellitus (DM), 179 IGT, 27 IFG and 9 (IFG and IGT). Those women with plasma glucose values abnormality of 0, 30 min, 60 min, 120 min, 180 min were 19 cases 0.98% (19/173), 74 cases 42.77% (74/173), 110 cases 63.58% (110/173), 42 cases 24.28% (42/173) and 12 cases 6.94% (12/173) respectively. Ten (10/173) patients would have been undetected if fasting plasma glucose levels were not evaluated, while omission of 30 min, 60 min, 120 min, or 180 min plasma glucose levels would have resulted in 16 cases (16/173), 50 cases (50/173), 28 cases (28/173) and 1 case (1/173) being missed respectively. If we took three times blood samples to evaluate plasma glucose levels, 39 cases (39/173) (0 min + 30 min +60 min), 102 cases (0 min + 30 min + 120 min), 21 cases (0 min + 30 min + 180 min), 34 cases (0 min + 60 min + 120 min), 45 cases (0 min + 60 min + 180 min), 123 cases (0 min + 120 min + 180 min) would be missed. Compared AUC of plasma glucose and insulin in 5 times with 3 times (0 min + 30 min + 60 min), the differences were statistically significant. Body mass index (BMI) was positively correlated with HOMA-IR (r = 0.29987 (P<0.01) as well as WHR (r = 0.12441, P<0.0001).
CONCLUSIONS: (i) The prevalence rate of obesity was higher in PCOS. The state of obesity had a positive relation with insulin resistance. (ii) The prevalence rate of lipid profiles abnormality in obesity group was higher than in non-obesity. (iii) OGTT was the essential examination for all the PCOS patients....
Shi Y, Guo M, Yan J, Sun W, Zhang X, Geng L, Xu L, Chen Z. Analysis of clinical characteristics in large-scale Chinese women with polycystic ovary syndrome. Neuro Endocrinol Lett. 2007 Dec; 28(6): 807-810