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1.
Int Med Case Rep J ; 14: 829-837, 2021.
Article in English | MEDLINE | ID: mdl-34984031

ABSTRACT

BACKGROUND: Granulomatosis with polyangiitis (GPA) is an extremely rare autoimmune, necrotizing granulomatous disease of unknown etiology affecting small and medium-sized blood vessels. Chronic pulmonary aspergillosis (CPA) is a rare fungal infection with high morbidity and mortality that usually affects immunocompetent or mildly immunosuppressed patients with underlying respiratory disease. Antifungal agents (voriconazole, itraconazole) are the mainstay of therapy. Intravenous drug therapy (amphotericin B or an echinocandin), alone or in combination with azoles, is the last resort in special situations such as azole failure, resistance, or severe disease. Sometimes CPA and GPA coexist and are difficult to distinguish due to the nonspecific symptoms and similarity of clinical and radiological features, so a high degree of suspicion is required to make the correct diagnosis. CASE PRESENTATION: We reported that a 28-year-old man from Saudi Arabia was diagnosed with GPA. The patient had been complaining of cough, fatigue, polyarthralgia and red eyes for 40 days before he was admitted to our hospital. The diagnosis of GPA was confirmed by clinical and radiological examinations and a pathological report of a lung biopsy, and he was treated with immunosuppressive drugs. The patient's condition was complicated by chronic pulmonary aspergillosis and type 2 diabetes mellitus. Initial treatments included systemic glucocorticoids, methotrexate, followed by rituximab and voriconazole, finally intravenous cyclophosphamide and amphotericin B, with no complete remission. The thoracic surgical team postponed surgical debridement of the significant cavitary lung lesions until the active fungal infection could be brought under control. CONCLUSION: The clinical and radiological features of GPA are similar to those of pulmonary tuberculosis, chronic pulmonary aspergillosis, and lung cancer. The lack of clear clinical symptoms of GPA requires a high degree of suspicion for early diagnosis. This case illustrates the dilemma of diagnosis and treatment of GPA and superimposed fungal infection. Secondary infection, particularly fungal infection, must be considered when GPA cannot be controlled with an immunosuppressant.

2.
Pituitary ; 21(3): 283-289, 2018 Jun.
Article in English | MEDLINE | ID: mdl-29357081

ABSTRACT

PURPOSE: In clinical research involving acromegalic patients naïve to somatostatin-receptor ligands (SRLs), 19 and 31% of those receiving the SRLs octreotide LAR and pasireotide LAR, respectively, achieved GH < 2.5 ng/mL + normalized IGF-1 concentrations. The proportions achieving control appeared higher in the post-surgery compared with the de-novo setting with pasireotide, but more similar with octreotide. Using pooled data from multicenter clinical trials, we examined the biochemical efficacy of lanreotide depot/Autogel in similar settings. METHODS: Inclusion criteria: Ipsen-sponsored, 48-52-week trials in SRL-naïve acromegalic populations receiving lanreotide depot (60-120 mg); patients were included if de novo (no prior acromegaly treatment) or post-surgery (no medical treatment; radiotherapy allowed unless within previous 3 years). Efficacy endpoints included normalized IGF-1 levels and GH < 2.5 ng/mL + normalized IGF-1 at study end/last value available. ANALYSES: all patients (analysis #1) and subset with baseline GH > 5 ng/mL (analysis #2). RESULTS: Three studies were included. Analysis #1: normalized IGF-1 was achieved by 42% (71/171) of patients overall (post-surgery, 46% [21/46]; de-novo, 40% [50/125]); GH < 2.5 ng/mL + normalized IGF-1 was achieved by 35% (59/171) (39% [18/46] and 33% [41/125], respectively). Analysis #2: normalized IGF-1 levels, 39% (46/118) (post-surgery, 40% [10/25]; de-novo, 39% [36/93]); GH < 2.5 ng/mL + normalized IGF-1, 31% (36/118) (28% [7/25] and 31% [29/93], respectively). CONCLUSION: In these pooled analyses of SRL-naïve patients receiving lanreotide depot, 39-42% achieved IGF-1 control and 31-35% achieved GH and IGF-1 control. Control rates within post-surgery cohorts did not differ markedly from those in corresponding de-novo cohorts.


Subject(s)
Acromegaly/drug therapy , Acromegaly/metabolism , Peptides, Cyclic/therapeutic use , Somatostatin/analogs & derivatives , Somatostatin/metabolism , Female , Human Growth Hormone/metabolism , Humans , Insulin-Like Growth Factor I/metabolism , Male , Peptides, Cyclic/administration & dosage , Somatostatin/administration & dosage , Somatostatin/therapeutic use
3.
Mol Cell Endocrinol ; 464: 28-33, 2018 03 15.
Article in English | MEDLINE | ID: mdl-28130115

ABSTRACT

Androgenic-anabolic steroids (AAS) are potent and widely used performance-enhancing substances (PES). Since the International Olympic Committee (IOC) began testing athletes for AAS in the 1970s, athletes and their teams have endeavored to beat the system to avoid doping violations and/or sanctions derived from positive test results. This review will discuss the strategies used to avoid detection based on the pharmacology, biochemistry, and genetics of AAS metabolism and testing principles. Another strategy used is to dope with testosterone under the guise that the athlete has a true medical condition that requires testosterone treatment, using the therapeutic use exemption (TUE) mechanism. Misrepresentation in TUE applications is extending to amateur athletes, as testosterone prescription outside of FDA guidance increases and sport organizations broaden their efforts to police doping at all levels of competition. Strict criteria are enforced under which a TUE for testosterone use may be granted, to maintain the integrity of sport. The challenge of upholding a zero-tolerance policy for AAS abuse, despite popular misconceptions of androgen physiology and pervasive attempts to dope among athletes and physicians, remains a daunting and evolving task for the anti-doping community.


Subject(s)
Anabolic Agents/pharmacology , Androgens/pharmacology , Athletes , Doping in Sports , Anabolic Agents/metabolism , Androgens/metabolism , Doping in Sports/legislation & jurisprudence , Humans
4.
Endocrinol Metab Clin North Am ; 45(4): 819-843, 2016 12.
Article in English | MEDLINE | ID: mdl-27823607

ABSTRACT

Metformin is the recommended first-line oral glucose-lowering drug initiated to control hyperglycemia in type 2 diabetes mellitus. It acts in the liver, small intestines, and skeletal muscles with its major effect on decreasing hepatic gluconeogenesis. It is safe, inexpensive, and weight neutral and can be associated with weight loss. It can reduce microvascular complication risk and its use is associated with a lower cardiovascular mortality compared with sulfonylurea therapy. It is also used to delay the onset of type 2 diabetes mellitus, in treating gestational diabetes, and in women with polycystic ovary syndrome.


Subject(s)
Diabetes Mellitus, Type 2/drug therapy , Hypoglycemic Agents/therapeutic use , Metformin/therapeutic use , Diabetes, Gestational/drug therapy , Female , Humans , Polycystic Ovary Syndrome/drug therapy , Pregnancy
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