Pregnancy and lactation-associated osteoporosis with pyogenic spondylitis: A case report

Table 1 Routine laboratory tests and bone metabolism

Project	CRP (mg/L)	ESR (mm/h)	WBC (109/L)	PCT (ng/mL)	25-OH-D (ng/mL)	PINP (ng/L)	β-CTX	OST (ng/L)	PTH (pg/mL)
Reference values	0-8	0-20	3.50-9.50	0-0.05	30-70	8.53-64.32	0.068-0.68	11-43	15-65
This case	8.43	25	4.98	0.04	12.96	62.74	1.430	22.21	12.0

Reference values were for non-pregnant lactating females. CRP: C-reactive protein; ESR: Erythrocyte sedimentation rate; WBC: White blood cell; PCT: Procalcitonin; 25-OH-D: 25 hydroxyvitamin D; PINP: Amino-terminal propeptide of type I collagen; OST: C-telopeptide of type I collagen; PTH: Parathyroid hormone.

Table 2 Serum calcium phosphorus and sex hormones

Project	AKP (U/L)	Ca (mmol/L)	P (mmol/L)	E2 (ng/L)	PROG (ug/L)	PRL (uIU/L)	LH (IU/L)	FSH (IU/L)
Reference values	35-100	2.08-2.60	0.74-1.52	41-398	0.121-12.0	102-496	14-95.6	4.7-21.5
This case	69	2.39	1.51	5.33	0.052	938.7	3.20	4.02

According to the last menstrual period, the patient was currently ovulatory with reference values of ovulatory female. AKP: Alkaline phosphatase; Ca: Serum calcium; P: Serum phosphorus; E2: Estrogen; PROG: Progesterone; PRL: Prolactin; LH: Luteinizing hormone; FSH: Follicle-stimulating hormone.